A: Immunization placebo; B: Immunization with the canarypox HIV-vaccine (vCP1452); C: Daily low-dose IL-2 + immunization placebo; or D: Daily low-dose IL-2 + canarypox HIV-vaccine (vCP1452). Patients on Arms A, B, C, and D receive vaccine (or vaccine placebo) injections at Weeks 0, 4, 8, and 12. Patients on Arms C and D receive IL-2 by self-injection. HAART is not provided as part of this study.